Raw-water-freezing apparatus.



RAW WATER FEEEZING APPETUES.

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wrruszscs Werff F. W. HAAS'. I RAW WATER FREEZING APPARATUS.

APPLICATION FILED 0UT..21. 1909. BBNEWED 00T.15, 1910.

Patented '1360.27, 1910.

A4 SHEETS-'SHEET zA INYENTQR WITNESSESI F. W. 'Ii-AAS.

RAW WATER REEZING APARATUS.

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RENEWED 001215, 1910. A

Patented Dec, 27, 1910.

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ATT-DINEY F. W. HAAS.

RAW WATER FBBBZING APPARATUS.

urmouron FILED ooT. 21. 1909. mms-wrm 00T. 1s. me.

Patented Dec. 27, 1910 4 BHEETB-BHIFET 4.

INVENTDR ATTORNEY v whereby their efficiency is greatly improved,

' 30 whereby the cans can be loosened from the UNITED sire-.rias PigENTOFFICE.

FRED W. HALS, OF PITTSBUBG, PENNSYLVANIA, ASSIGNOR OF ONETHIBD T0 GEORGEN. POWELL, 0F PITTSBURG, PENNSYLVANIA.

RAW-WATER-FREEZING ARPARATUS.

Specication or Letters Patent. y Patented De'c. 27, 1910.

Application led October 21., 1909, Serial No. 523,754. Renewed October15, 1910. `Serial No. 587,315.

Tooll 'whom 'it 'may concern:

Be it known that I, FRED W. HAAS, a citizen of the United States,residing at Pittsburg, in the count of Allegheny and State ofPennsylvania, have invented or discovered new and useful Improvements inRaw- W'ater-Freezing Apparatus, of .which the following is aspecification.

My invention relates to' ice `machines or freezing apparatus and hasparticular ref erenceto that class of ice machines which make icefrom-water in its raw state, that is, from water which has not beentreated for the purpose of sterilizin or purifying the same, but it isto be un erstood t-h'at I do not limit my freezing apparatus to anyparticular use.

'I he objects of my invention are, first, to provide means' for causingthe removal of foreign matter from raw, or natural, Water, 'so that iceblocks-will be made transparent, and free from white or snow centers,boiler gas, bacteria, and other foreign matter; second, to make ice in aShorter' time by perfecting the flow of the refrigerant and causing acurrent of cooled air to through the walter while freezing; thir toerfect the construct-ion of freezing tanks walls of the tanks Withoutloss of refrigerant and whereby the precipitated sedimentf from the raw'Water ma be drawn o lf; fourth, to provide efficient check valves forthe air pipes;' fifth, to provide means for cooling the'air .before itsentrance to the ice-cans, Iand to prevent freez-ing of the water on theoutside of the ice-cans; and sixth, to makevv numerous other minorimprovements which reduce the cost andv increase the efiioiency of theapparatus.

- Referring to the accom anying drawings which illustrate one of t emany Ways in which my invention may be embodied, Fig .Y

.ure 1 is partly a vertical section and part 'l .,a side elevation of afreezing apparatus constructed 'iniiaccordance with the preferred-- formthereof, said .figure being on the line 1 1, Fig. 2; Fig. 2, atop lanview of the same; Fig. 3, a section on tiie linevIII-III, Fig. 2; Fig.4, a vertical section of one end ofmy` invention showing a modified formof air'outletyFig. 5,.a perspective of the lower end of an ice-can; Fig.6, a section l vertical section of one of the air inlets with one of itsoutlets, together with the semi- Acylindrical conveyer for the air afterthe ice congeals entirely across the cans; Fig. 8,

a vertical'section of one of the air outlets and its contained valve;Fig. 9 a perspective of one'of the plates heremafter referred to; andFig. 10, a vertical section of a ortion of my apparatus showing a modication thereof. 'l

On -the drawings, I show the freezing tank, havin the sheet metal bottom1, sides 2 and 3, an ends 4 and, secured together, as hereinafter to beexplained, so as to form a ectan lar tank.

Exten in from the end 4 to the end 5 are four suEst-antally verticalmetal plates 6,'7, 8, and 9. The pla-te Gis spaced from the side 2preferably by the metal channels 1Q, 11, 12, and 13, the channel 10being at a short distance above the bottom 1, and the channels 11 and 12dividin 'the space between the channels 10 an `13 preferablysubstantially equally. The plate 9 is spaced from the side 3 preferablyby themetal channel-s 14, 15, 16, and 17 arrangedA as the channels 10,11, 12, and 13 are,and located, respectively, in the same horizontalplanes. The plates 7 and 8 are centrally arranged in the tank and arespaced apart preferably the top ofthe tank, the channel 13 being by themetal channels 18, 19,20, and 21,

respectively, in the same horizontal planesas the channels 10, 11, 12,and 13. All the. I

said channels aresecured water tight to the sides 2 and 3, and to theplates 6 to 9 preferably by rivets, as shown on the clrawhe spacebetween the plates.8. and .9 is formed luto two compartments 22 andi 23by means of the substantiall pilates 24.,.5'2-5, 26 and 2 *i thelatey24` are space by the metal channels 28 29, 30, and 31,respectively, in the same horizontal planes as the channels 10, 11, 12,and 13. Ihe end 5 and the plate 27 are spaced apart by four .he 4end 4and apart' preferably' channels respectively. The. lates 25 'and 2 6 arearranged centrally o the s ace between the plates 6 vand 7 and divi e-the said space .lnto the said compartments and 23. The

vertical metal only 32 being shown)f1n the` .planes of the channelslO,11, 12, and 13,

l .plates and'25 are spaced apart b the channels 83, '34, 35, and 36,respective y, in the plaliesof thechannels 10, 11, 12, and 13.

.The sid channelsare. connected water tight to the ends 4: and 5, theplates 6, 7, und 2410 27 by rivets es shown on Fig. 1.

The space between the pl'ates 6 and 7 is divided in two compartments22*snd 23a,

Aments 22l and 23l are e'xac corres onding to the compartments 22 and heparts surroundingV the compartt y like those deL scribed around thecompartments22 and 23. Accordingly, the same reference 1111-' moralswill be used for the parts around; the' compartments 22* and v23 butwith the exponent a. e

-The several described sides, ends, and plates where contiguous aresecu-red to ther water tight by Ineens-of the metal an bar 37 riveted tothe said plates. The si es and I ends are secured together by theexternal an le bars 38 riveted to the said sides and en s. r

The plates, 7, 8, and 9 are provided with the holes 39 opposite thespa-ces between the end 4 and the plate 24.' the end and the 'plate 24,the plates 25 und 26, the plates' 25 and 26, the end 5 andthe plate 32,and the end 5 and the plate 32".

It will nowlbe seen Vthat the four conipartments 22, 22"', 23, and 23aare each surrounded by'double or jacketed walls constructed so thatafluid within the double walls or 'ackets might circulate completelyaround a' of the conipiut-ineiits` --The'double walls or jackets`eredividedby the aforesaid -channels into three horizontal sections,huvl."

ing referably no communication withv one anot er except by the holes 39which extend on both sides of some of the intermediste chemiels as shownon Fig. .1. V The upper channels open-upwslrdly and the lower channelsopen downwardly :ind

- tion ofthe roof of the three brine `sections @before mentioned. The-brine circulates 4 around in ,the jackets andtinally nds its by mailbrine 1st-aken away bythe return pipe 44,

outlets near the bottouof the fbrine sections nsof the pipes 43, fromwhich the By placingthe inlet pipes at lthe top of the brine.circulating section, I insure a perfect circultion ofthe brine .intonllthe cor-ners and other'port-ions.' j 45 ,isV e va-lved- -driiinv pipeextending througlliythejl end 4 into the lower part of the wisst'Y or''refrigerant section yils shown below 'the bottom .'ehe'nnels mosphere.

forms a water chamberv 46 which coninmni-- cotes with the fourcompartments 22, 22,

23, and 23. Y j

47 is a valved inlet pipe through which i water to be frozen .isadmitted to the chainl bei' 4:6, und 48' is n valved drain pipeleml ingfrom the said chamber 46c 49 are air inlets lending into the chamber 46and conveying wir to the coils 50 having the upwardly extendin;r outletor jets lil, each provided with' the upiierdly-opening check valve -52to prevent access of waiter to the air coil. These outlets or jets areei ranged beneath the openings or slots :3iin the bottoms of. theice-cans 5ft, which ere. l

seated. in the compartments 22, 22, etc., and extend somewhat below thebottom ci the .lowest refrigerant section as shown in Fig. 1, so thatice at the bottom of the ice cuir, will 'not be frozen so hard as tohook through the. openings 53 against the bottoms'ot the lowestchambers, und preventthe ready withdrawal of the icecnns with theircontained blocks of ice.

Extendin fromtfle chamber 46 are the two vertice air pipes 55 extendinglthrough the channels between the plates 25 and 2t, and between theplates 25 and 26a. Esch pipe and its accessories are the seme.necessiteting the description ot' one only. The pipe 55 (Figs. 1 und 8)hns its lower end connected to a T-connection provided with thehorizontal branch oir conveys-rs lying directlyover the jets 51j p Those4parte of the lair conveyerswhich liever the jets 51 have the lowervlong fitudinul half re- "ifx'igijed, hervir-ign concave or channel airconduit which under `certain conditions will' is a chamber containingthe lloit valve 58- lighter than Waiter. This valve seats lip-- Wardlyagainst the tube 5S) which projects into the ralve chamber and lends tothe at The plates termini; the compartments 22. 222.23, und 23 areinclined so that t 1 com 4pertinents taper downwardly, sov msi. the

ice-cans' which taper correspondingly may be withdrawn more readily. f 4The operation is :is follows: The' cold brine isv caused to circulatethrough the brine sect-ions from the inlet'41 to the out-let Water isadmitted through the-inlet 47 until it ster-ids at such :i level inthecans' 54 that the latter will, et the completion of the freezing operation, be filled with ice to tl e desired height. Compressed airis'caused to enterthe chamber 46 by way of.-the inlets 419, the coils50, and the jets 51 and bubble up through the water. yThe cooling oftheY water toa lbw temperature causes bncteria vto become dor,-

vthe valve reseats it.

,top tovbottmn. As soon as. the ice freezesl across the cans so as toprevent the free escape of the air, the air then travels along theconduits 56 and up the pipes 55, thus permitting the agitation of thewater vto be kept up .j until the blocks ofice' have frozen to thebottom. The valve 58 will be forced up by water in the pipe so as toclose the outlet 59. The air in the Water being lighter than the waterrises to the top of the tube and lowers the valve from its seatpermitting the air to escape until the water which is heavier than Astheair displaces the water the valve will sink with it, the valve beingheavier than the air. After the refrigeration is complete, the brine is'drawn off through the pipe 45 `into a brine tank or other receptacle tobe reused. 'A hot fluid steamis then forced through the brine sectionsto loosen' the ice-cans from -the tanks. The het fluid is then removedand the freezing process is repeated. The water in the chamber #f6 isdrawn off toremove the matter precipitated from the water.

Referringnow to Fig. 10, the construction is the same asth'atlhereinbefore described except that I have shown two interiorchannels made up of angle bars overlapping and secured together bybolts. In assemblingl the apparatus the interior channels can be boltedtogether by reaching down from the top and up from the bottom before'.the top and bottom channels have been inserted.

I use the term channel 7 in the specification in thersense which it hasin the structural metal art,-Where it means a plate having flanges atits opposite edges.v

While I have shown and described minutely a detinite size or quantityand definite elements and. their combinations, I do not restrict myselfthereto except Where the state of the art or the precise wording of theclaims require such restriction.

Other refrigerant-s than brine may be used in my apparatus, andexpansion coils may be placed in the brine compartments.

I claim- 1. In an ice-making apparatus, a can to contain water to befrozen, means .for inice-cannot form externally of the sides thereof andbeneath the jacket.

3. In an ice-making machine, a tank, a

; refrigerantcompartment located in the tank abovethe bottom thereof andhaving walls preventing the passage of fluid between the tank and thecompartment, and an ice-can surrounded Ilaterally by the said chamberand having its b ottom` perforated and below the bottom of the saidchamber whereby the ice cannotform externally ofthe sides of the can andbeneath the refrigerantcompartment.

4. In au ice making apparatus, a refrig-l erant jacket having uprightvlates spaced apart at the top and bottom y channeled plates openingoutwardly, and heat insulating material in the channels.

5. In an ice makingapparatus, a casing having upright' jacketed wallssurrounding compartments for the water to be frozen, means fordividingthe jacket into different levels, pipes at the tops of thelevels for injecting refrigerant, and pipes at a lower portion of thelevels for conducting the refrigerant away.

6. In an ice making apparatus, a casing having upright jacketed wallsSurrounding compartments for the water to be frozen, means for dividingthe jacket into different levels, pipes at the tops ofthe levels forvinject-ing refrigerant, and pipes at the opposite side of the casingand atla lower-portion of the levels for conducting the refrigerantaway.

7. In an ice making apparatus,` a -casing having upright jacketed wallssurrounding compartments for the water to be frozen, the ends of 'somejacketed walls abutting the sides of other jacketed Walls, there beingopenings in the lat-ter walls alongside of the ends -of-the abuttingja'cketed walls.

8. In an ice making apparatus', a Water chamber belowv and in freecommunication with a compartment in which the refrigeration isaccomplished, means for injecting air vinto the chamber, and meansbetween the air-injecting means and the refrigerat-ing compartment tointercept andconvey otf the air 4when the water in the .compartmentfreezes entirely across. A

9. In an lce making apparatus, a Water chamber below andin communicationvWith a compartment in which the refrigeration is accomplished, means.for injecting air into the chamber, a downwardly concave conduit overthe air-injecting means', and means for leading away the air from thesaid conduit.

l0. In an ice. making apparatus, a water compartment, a water containingchamber below the same and in communication there'-V with, means forinjecting compressed air into the water, anA air tu'be to carry oftheair when the water is -frozen entirely across, a valve lighter thanwater in said outlet,

iso

andan ar utlet above the valve closed by the valve when seated by thewater.

.frozen for` provi 11.'In an ice,'making .aparatua means for Asupplyingthe Water 'te :i'ir fr om below during the freezing actlon 4and meansarran ed below the water to be ing an escape for. bhe alr'; 4when the`water freezes se as to Vprevent the .escape of air throughtbevwaterfand ,fOr

frozen with continuously keeping the Water in Contact with the iceduring the entire freezing action. K

Si ed at Pittsburg, Pa., this 19th day of Octo er, 1909.

` FRED W. HAAS. Witnesses:

F. N. BARBER,- A-NNA R. Bamm

